-6X^2+54X-84=0

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Solution for -6X^2+54X-84=0 equation:


Simplifying
-6X2 + 54X + -84 = 0

Reorder the terms:
-84 + 54X + -6X2 = 0

Solving
-84 + 54X + -6X2 = 0

Solving for variable 'X'.

Factor out the Greatest Common Factor (GCF), '6'.
6(-14 + 9X + -1X2) = 0

Factor a trinomial.
6((-7 + X)(2 + -1X)) = 0

Ignore the factor 6.

Subproblem 1

Set the factor '(-7 + X)' equal to zero and attempt to solve: Simplifying -7 + X = 0 Solving -7 + X = 0 Move all terms containing X to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + X = 0 + 7 Combine like terms: -7 + 7 = 0 0 + X = 0 + 7 X = 0 + 7 Combine like terms: 0 + 7 = 7 X = 7 Simplifying X = 7

Subproblem 2

Set the factor '(2 + -1X)' equal to zero and attempt to solve: Simplifying 2 + -1X = 0 Solving 2 + -1X = 0 Move all terms containing X to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -1X = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -1X = 0 + -2 -1X = 0 + -2 Combine like terms: 0 + -2 = -2 -1X = -2 Divide each side by '-1'. X = 2 Simplifying X = 2

Solution

X = {7, 2}

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